dlangui.all

// helloworld
import dlangui.all;
// required in one of modules
mixin APP_ENTRY_POINT;

/// entry point for dlangui based application
extern (C) int UIAppMain(string[] args) {
    // resource directory search paths
    string[] resourceDirs = [
        appendPath(exePath, "../../../res/"),   // for Visual D and DUB builds
        appendPath(exePath, "../../../../res/"), // for Mono-D builds
        appendPath(exePath, "res/") // when res dir is located at the same directory as executable
    ];

    // setup resource directories - will use only existing directories
	Platform.instance.resourceDirs = resourceDirs;
    // select translation file - for english language
	Platform.instance.uiLanguage = "en";
	// load theme from file "theme_default.xml"
	Platform.instance.uiTheme = "theme_default";

    // create window
    Window window = Platform.instance.createWindow("My Window", null);
    // create some widget to show in window
    window.mainWidget = (new Button()).text("Hello world"d);
    // show window
    window.show();
    // run message loop
    return Platform.instance.enterMessageLoop();
}